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农学学报 ›› 2016, Vol. 6 ›› Issue (2): 44-47.doi: 10.11923/j.issn.2095-4050.cjas15060020

所属专题: 油料作物

• 植物保护 • 上一篇    下一篇

施用长效缓释尿素对大豆根腐病及产量的影响

顾鑫,于铭,丁俊杰   

  1. 黑龙江省农业科学院 佳木斯分院/农业部佳木斯作物有害生物科学观测试验站,黑龙江省绿色食品发展中心,黑龙江省农业科学院 佳木斯分院/农业部佳木斯作物有害生物科学观测试验站
  • 收稿日期:2015-06-18 修回日期:2015-07-01 接受日期:2015-07-06 出版日期:2016-02-18 发布日期:2016-02-18
  • 通讯作者: 丁俊杰 E-mail:guxin1111
  • 基金资助:
    公益性行业(农业)专项“作物疫病监测防控技术研究与示范”(201303018);黑龙江大豆产业振兴院士工作站资助项目“大豆根腐病病原菌的分子鉴定和疫霉、灰斑抗源筛选”(2013DYGZ203-3);黑龙江省自然科学基金面上项目“黑龙江省大豆根腐病病原菌种群遗传结构及ITS序列分析”(C201449)

Effect of Application of Sustained Release Urea on Root Rot and Yield of Soybean

  • Received:2015-06-18 Revised:2015-07-01 Accepted:2015-07-06 Online:2016-02-18 Published:2016-02-18

摘要: 为了探明长效缓释尿素是否对大豆根腐病病情指数有影响,其影响是否是导致产量降低的主要因素,试验于2014 年在大豆鼓粒期采用通径分析的方法对根部主要生理指标、大豆根腐病病情指数与产量之间的关系进行了通径分析。结果表明:施用长效缓释尿素的处理病情指数最低,达到33.96%,其产量最高为2998.65 kg/hm2。在对影响大豆产量的根部参数的通径分析中可以看出,直接通径系数最大的为地下鲜重的0.4649,说明其为最关键因子。根腐病病情指数也是影响大豆产量的因素之一,但其不是最主要的因素。长效缓释尿素主要是通过增加地下鲜重从而影响产量。

关键词: QuEChERS, QuEChERS, LC-MS/MS, 柑橘, 杀螨剂, 残留分析

Abstract: The study aims to find out whether the sustained release urea has certain effects on the disease index of soybean root rot, and whether the effect could be the main factor of the yield decrease. The relationship between the main physiological index of soybean and soybean root rot disease index and yield of soybean was analyzed by using path analysis in 2014. The results showed that the disease index of treatment of long-term sustained release urea was the lowest, which was 33.96% , but its yield was 2998.65 kg/hm2. In the path analysis of the root parameters affecting the yield of soybean, we could see the direct path coefficient was 0.4649, which was the most important factor for underground fresh weight. The disease index of root rot was one of the factors that affect soybean production, but it was not the main factor. The effect of sustained release urea on the yield was mainly through the increase of underground fresh weight.

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